CN209262265U - For the pressure relief device on pressure gauge pipeline - Google Patents
For the pressure relief device on pressure gauge pipeline Download PDFInfo
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- CN209262265U CN209262265U CN201822126005.5U CN201822126005U CN209262265U CN 209262265 U CN209262265 U CN 209262265U CN 201822126005 U CN201822126005 U CN 201822126005U CN 209262265 U CN209262265 U CN 209262265U
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- spool
- hole
- pressure
- release
- pressure gauge
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Abstract
The utility model discloses a kind of pressure relief devices on pressure gauge pipeline, it is therefore an objective to solve the problems, such as how high pressure gas conveniently, safely carries out pressure release when the existing pressure gauge detachable maintaining for not having decompression function.Including fitting body, spool, gland nut and release connector.Pressure relief device is mounted on pressure piping between gauge valve and instrumentation pipeline by the venthole inlet and outlet in fitting body, it diffuses connector connection and concentrates release or recovery pipe, when needing replacing maintenance instrument, close the gauge valve being attached thereto, slightly unclamp some gland nuts, high pressure gas in connecting tube opens valve core device by gas vent, through spool mounting hole, release hole, release connector discharge.The pressure relief device of the utility model facilitates detachable maintaining pressure gauge, avoids atmosphere pollution, reduces operational hazards, has good social effect and wide application prospect.
Description
Technical field
The utility model relates to pressure gauge fields, and in particular to a kind of pressure relief device on pressure gauge pipeline.
Background technique
Pressure gauge, pressure transmitter are the common pressure instrumentations of gas pressure pipe, common pipeline installation knot
Structure is that branch all the way is drawn on main delivery pipe, successively installs gauge valve, connecting tube, pressure gauge.Occur in pressure gauge
When failure, need first to close gauge valve, then dismantle instrument and repair replacement for after the high-pressure gas discharging decompressing in pipeline.But
When this structure has the disadvantage that the maintenance of 1. pressure gauges, main line gas flow of releasing is excessive, causes to waste；2. some are used
Family carries out detachable maintaining, and commercially available gauge valve and instrument to instrument to reduce the discharge of main line gas, directly closing gauge valve
Table does not have decompression function generally, and when instrument detachable maintaining, the high pressure gas in pipeline is easy to damage operator；
3. if the connecting line gas between gauge valve and instrument can not achieve collection be fuel gas or toxic and harmful gas in pipeline
Middle discharge or recovery processing will cause atmosphere pollution or human injury when dismantling instrument；4. pipeline gas is replaced, because should
Section instrumentation pipeline does not have discharge outlet, it may appear that foreign gas residual, gas displacement are not thorough.
Utility model content
The goal of the invention of the utility model is to provide a kind of pressure relief device on pressure gauge pipeline, existing to solve
The pressure gauge detachable maintaining for not having decompression function when high pressure gas the problem of how conveniently, safely carrying out pressure release.
In order to solve the above technical problems, the utility model adopts the following technical solution:
A kind of pressure relief device on pressure gauge pipeline is designed, including fitting body, spool, gland nut and release connect
Head, the fitting body are equipped with venthole, gas vent, release hole, and spool mounting hole, the venthole inlet and outlet are for connecting instrument
Table pipeline and pressure gauge, the gas vent and the spool mounting hole are coaxial aperture, and the spool mounting hole is stepped hole, packet
Inner hole and exit orifice are included, the inner hole is unthreaded hole, and the exit orifice is threaded hole and aperture is greater than the inner hole, and the exit orifice is to compress
Swivel nut fixation hole；The step junction of the gas vent and the spool mounting hole is equipped with the conical surface；The release hole and the valve
Core mounting hole is connected at inner hole, and the release connector is installed on the release hole；The spool includes spool guiding axis, compresses
Swivel nut guiding axis compresses the conical surface, spool step surface, and the compression conical surface matched with the conical surface of the fitting body, the pressure
The tight conical surface is set to the spool guiding axis, and the gland nut guiding axis passes through the gland nut, the spool and described
Sealing mechanism is provided between spool mounting hole；Gland nut screw terminal end face is matched with the spool step surface.
Preferably, venthole inlet and outlet are connected through a screw thread instrumentation pipeline and pressure gauge.
Preferably, the sealing mechanism is set on the spool guiding axis.
Preferably, the sealing mechanism includes the groove being set on the spool guiding axis, is provided in the groove
Retaining ring and sealing ring.
Preferably, the retaining ring is two, and the sealing ring is O-ring seal and is installed between the retaining ring.
Preferably, the retaining ring is tetrafluoro angular cut retaining ring.
Preferably, the release connector is connected by screw thread with the fitting body.
Preferably, the release connector can connect concentration release or recovery pipe.
The utility model compared with prior art, has the advantage that
1. when pressure gauge detachable maintaining, can directly close the branch line gauge valve, then slight unclamp a little is let out
Clamp nut on pressure device discharges pipeline gas between gauge valve and instrument, realizes decompression function, does not need discharge main line
Interior high pressure gas reduces waste.
2. when pressure gauge detachable maintaining, if be fuel gas or the toxic and harmful gas pressure release of high pressure in pipeline,
It discharges or is recycled, it can be achieved that concentrating by the release pipeline of connection release connector, reduce atmosphere pollution or human injury.
3. being remained from the foreign gas that can effectively discharge instrument branch line in pipeline gas displacement, reducing impurity gas
Body content improves gas displacement quality.
4. the pressure relief device can be used for existing pressure gauge pipeline upgrading, equipment O&M safety can be effectively improved
Property, there is good social effect and wide application prospect.
Detailed description of the invention
Fig. 1 is the main view for the pressure relief device on pressure gauge pipeline of embodiment；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is the B-B cross-sectional view of Fig. 1；
Fig. 4 is the A partial enlarged view of Fig. 3；
In figure, 1 is fitting body, and 11 be venthole, and 12 be gas vent, and 13 is diffuse hole, and 14 be spool mounting hole, and 2 be valve
Core, 21 is compress the conical surface, and 22 be spool guiding axis, and 221 be groove, and 23 be gland nut guiding axis, and 24 be spool step surface, and 3
It is sealing ring for retaining ring, 4,5 be gland nut, and 6 be release connector.
Specific embodiment
Illustrate specific embodiment of the present utility model with reference to the accompanying drawings and examples, but following embodiment only uses
It is described in detail the utility model, does not limit the scope of the utility model in any way.
Embodiment 1:
A kind of pressure relief device on pressure gauge pipeline, referring to Fig. 1-Fig. 4, the pressure relief device is mainly by fitting body
1, spool 2, retaining ring 3, sealing ring 4, gland nut 5 and release connector 6 form.
Fitting body 1 is equipped with venthole 11, gas vent 12, release hole 13, spool mounting hole 14.The inlet and outlet of venthole 11 are adopted
It is threadedly coupled form, pressure relief device is mounted on gauge valve on pressure piping by the inlet and outlet of the venthole 11 in fitting body 1
Between instrumentation pipeline；Venthole 11 is connected to spool mounting hole 14 by gas vent 12；Gas vent 12 and spool mounting hole 14
For coaxial aperture；Spool mounting hole 14 is stepped hole, and inner hole is unthreaded hole, and as core assembly pilot hole, exit orifice is threaded hole, as
5 fixation hole of gland nut；The step junction of gas vent 12 and spool mounting hole 14 is machined with the conical surface；Release hole 13 passes through aperture
It is connected at inner hole with spool mounting hole 14, release hole 13 is equipped with threaded hole, the installation connecting hole as release connector 6；
Spool 2 includes to compress the conical surface 21, spool guiding axis 22, gland nut guiding axis 23, spool step surface 24.Spool is led
It is equipped with groove 221 to axis 22,22 one end of spool guiding axis is the compression conical surface 21 with the cone match of spool mounting hole 14, another
End is gland nut guiding axis 23.Retaining ring 3 is tetrafluoro angular cut retaining ring, and two retaining rings 3 clamp an O-ring seal 4 and are fixed on
In groove 221 on spool guiding axis 22, the sealing mechanism for preventing gas leakage is collectively constituted.One spool, 2, two retaining rings 3
Core assembly is formed with a sealing ring 4.The core assembly conical surface is inserted into fitting body 1 inwards, and core assembly passes through O-ring seal 4
It is formed and is sealed with the guiding hole face of fitting body 1.5 sets of gland nut in core assembly rear end, gland nut 5 passes through with fitting body 1
It is threaded togather, rotatably compresses swivel nut 5, screw terminal end face is contacted with spool step surface 24, pushes core assembly forward, directly
It is closely linked to the compression conical surface 21 and the conical surface of fitting body 1, forms sealing, close gas vent 12.Connector 6 is diffused simultaneously
It is connected through a screw thread and is mounted in fitting body 1, be connected to spool mounting hole 14 through release hole 13.Gland nut guiding axis 23 passes through institute
Gland nut 5 is stated, interval cooperates between the two, is relatively rotatable to each other.The method that spool 2 is pushed using gland nut 5, Ke Yi
When rotatably compressing swivel nut 5, spool 2 does not follow rotation, compresses the conical surface 21 and does not rotate simultaneously, avoids because binding face relative rotation rubs
The case where wiping and wearing larger, easy induction gas leakage.
Pressure relief device is mounted on gauge valve and instrumentation pipeline on pressure piping by the inlet and outlet of venthole 11 in fitting body 1
Between, release or recovery pipe are concentrated in the release connection of connector 6, when needing replacing maintenance instrument, close the instrument being attached thereto
Valve slightly unclamps some gland nuts 5, and the high pressure gas in connecting tube opens valve core device by gas vent 12, pacifies through spool
Hole 14, release hole 13, the release discharge of connector 6 are filled, pressure leak process is completed.
The utility model is described in detail above in conjunction with drawings and examples, still, the skill of technical field
Art personnel, can also be to each specific in above-described embodiment it is understood that without departing from the purpose of the present invention
Parameter changes, and forms multiple specific embodiments, is the common variation range of the utility model, no longer detailed one by one herein
It states.
Claims (8)
1. a kind of pressure relief device on pressure gauge pipeline, which is characterized in that including fitting body, spool, gland nut and
Connector is diffused, the fitting body is equipped with venthole, gas vent, release hole, spool mounting hole, and the venthole inlet and outlet are used for
Instrumentation pipeline and pressure gauge are connected, the gas vent and the spool mounting hole are coaxial aperture, and the spool mounting hole is platform
Rank hole, including inner hole and exit orifice, the inner hole are unthreaded hole, and the exit orifice is threaded hole and aperture is greater than the inner hole, described outer
Hole is gland nut fixation hole；The step junction of the gas vent and the spool mounting hole is equipped with the conical surface；The release hole
It is connected at inner hole with the spool mounting hole, the release connector is installed on the release hole；
The spool include spool guiding axis, gland nut guiding axis, compress the conical surface, spool step surface, and with the connector
The compression conical surface that the conical surface of body matches, the compression conical surface are set to the spool guiding axis, the gland nut guiding axis
Across the gland nut, sealing mechanism is provided between the spool and the spool mounting hole；The gland nut screws in
End end face is matched with the spool step surface.
2. according to claim 1 for the pressure relief device on pressure gauge pipeline, which is characterized in that venthole inlet and outlet are logical
Cross threaded connection instrumentation pipeline and pressure gauge.
3. according to claim 1 for the pressure relief device on pressure gauge pipeline, which is characterized in that the sealing mechanism is set
It is placed on the spool guiding axis.
4. according to claim 3 for the pressure relief device on pressure gauge pipeline, which is characterized in that the sealing mechanism packet
The groove being set on the spool guiding axis is included, is provided with retaining ring and sealing ring in the groove.
5. according to claim 4 for the pressure relief device on pressure gauge pipeline, which is characterized in that the retaining ring is two
A, the sealing ring is O-ring seal and is installed between the retaining ring.
6. according to claim 5 for the pressure relief device on pressure gauge pipeline, which is characterized in that the retaining ring is tetrafluoro
Angular cut retaining ring.
7. the pressure relief device according to claim 1 to 6 on pressure gauge pipeline, which is characterized in that institute
Release connector is stated to connect by screw thread with the fitting body.
8. according to claim 7 for the pressure relief device on pressure gauge pipeline, which is characterized in that the release connector can
Release or recovery pipe are concentrated in connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822126005.5U CN209262265U (en) | 2018-12-18 | 2018-12-18 | For the pressure relief device on pressure gauge pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822126005.5U CN209262265U (en) | 2018-12-18 | 2018-12-18 | For the pressure relief device on pressure gauge pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209262265U true CN209262265U (en) | 2019-08-16 |
Family
ID=67559911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822126005.5U Active CN209262265U (en) | 2018-12-18 | 2018-12-18 | For the pressure relief device on pressure gauge pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209262265U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115234464A (en) * | 2022-07-27 | 2022-10-25 | 四川宏华电气有限责任公司 | Carbon dioxide fracturing release device |
-
2018
- 2018-12-18 CN CN201822126005.5U patent/CN209262265U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115234464A (en) * | 2022-07-27 | 2022-10-25 | 四川宏华电气有限责任公司 | Carbon dioxide fracturing release device |
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